DE69320751D1 - Magneto-optical recording medium - Google Patents

Magneto-optical recording medium

Info

Publication number
DE69320751D1
DE69320751D1 DE69320751T DE69320751T DE69320751D1 DE 69320751 D1 DE69320751 D1 DE 69320751D1 DE 69320751 T DE69320751 T DE 69320751T DE 69320751 T DE69320751 T DE 69320751T DE 69320751 D1 DE69320751 D1 DE 69320751D1
Authority
DE
Germany
Prior art keywords
magneto
recording medium
optical recording
optical
medium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69320751T
Other languages
German (de)
Other versions
DE69320751T2 (en
Inventor
Yoichi Osato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE69320751D1 publication Critical patent/DE69320751D1/en
Publication of DE69320751T2 publication Critical patent/DE69320751T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12875—Platinum group metal-base component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12903—Cu-base component
    • Y10T428/1291—Next to Co-, Cu-, or Ni-base component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264—Up to 3 mils
    • Y10T428/265—1 mil or less
DE69320751T 1992-10-29 1993-10-28 Magneto-optical recording medium Expired - Fee Related DE69320751T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4291183A JPH06139637A (en) 1992-10-29 1992-10-29 Magneto-optical recording medium

Publications (2)

Publication Number Publication Date
DE69320751D1 true DE69320751D1 (en) 1998-10-08
DE69320751T2 DE69320751T2 (en) 1999-02-18

Family

ID=17765540

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69320751T Expired - Fee Related DE69320751T2 (en) 1992-10-29 1993-10-28 Magneto-optical recording medium

Country Status (4)

Country Link
US (1) US5521006A (en)
EP (1) EP0595636B1 (en)
JP (1) JPH06139637A (en)
DE (1) DE69320751T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5565266A (en) * 1993-06-14 1996-10-15 Eastman Kodak Company Multilayer magnetooptic recording media
JPH0963120A (en) * 1995-08-25 1997-03-07 Sony Corp Optical recording medium
JP2001167484A (en) * 1999-09-30 2001-06-22 Sanyo Electric Co Ltd Magnetic-optical recording medium
US20030130129A1 (en) * 2001-07-13 2003-07-10 Massachusetts Institute Of Technology Vacuum processing for fabrication of superconducting films fabricated by metal-organic processing
KR100695121B1 (en) * 2002-07-27 2007-03-14 삼성전자주식회사 Perpendicular magnetic recording media
TWI220787B (en) * 2003-10-24 2004-09-01 Asustek Comp Inc Electric device with electrostatic discharge protection structure thereof

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472575A (en) * 1966-11-04 1969-10-14 Ampex Magnetic storage medium for enhancing magneto-optic readout
JPS5954056A (en) * 1982-09-21 1984-03-28 Sharp Corp Magnetooptic storage element
US4675767A (en) * 1983-12-12 1987-06-23 Canon Kabushiki Kaisha Opto-magnetic recording medium
JPS60133558A (en) * 1983-12-21 1985-07-16 Nec Corp Photomagnetic recording medium
JPS6134747A (en) * 1984-07-27 1986-02-19 Hitachi Ltd Photoelectromagnetic multilayered film medium
US4777068A (en) * 1984-08-10 1988-10-11 Canon Kabushiki Kaisha Optical recording medium
US4587176A (en) * 1985-01-14 1986-05-06 E. I. Du Pont De Nemours And Company Layered coherent structures for magnetic recording
EP0258978B1 (en) * 1986-07-08 1998-10-07 Canon Kabushiki Kaisha Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same
JPS63211142A (en) * 1987-02-27 1988-09-02 Hitachi Maxell Ltd Magneto-optical recording medium
EP0304873B1 (en) * 1987-08-26 1991-11-21 Sony Corporation Magneto-optical recording medium
JPS6476551A (en) * 1987-09-18 1989-03-22 Matsushita Electric Ind Co Ltd Magneto-optical recording body
JP2526615B2 (en) * 1987-12-24 1996-08-21 ソニー株式会社 Magneto-optical recording medium
US4950547A (en) * 1988-07-08 1990-08-21 Oki Electric Industry Co., Ltd. Magneto-optical recording medium having protective film with increased Kerr effect and improved protection characteristic and manufacturing method of the same
JP2630841B2 (en) * 1989-10-03 1997-07-16 三洋電機株式会社 Magneto-optical recording medium
JPH03228239A (en) * 1990-01-31 1991-10-09 Kuraray Co Ltd Magneto-optical recording medium
WO1991014263A1 (en) * 1990-03-15 1991-09-19 E.I. Du Pont De Nemours And Company Platinum or palladium/cobalt multilayer on a zinc oxide or indium oxide layer for magneto-optical recording
JP3029485B2 (en) * 1991-07-22 2000-04-04 キヤノン株式会社 Magneto-optical recording medium
JP3113358B2 (en) * 1991-12-25 2000-11-27 三洋電機株式会社 Magneto-optical recording medium
JP3133443B2 (en) * 1991-12-26 2001-02-05 三洋電機株式会社 Magneto-optical recording medium

Also Published As

Publication number Publication date
JPH06139637A (en) 1994-05-20
US5521006A (en) 1996-05-28
EP0595636B1 (en) 1998-09-02
DE69320751T2 (en) 1999-02-18
EP0595636A3 (en) 1994-10-12
EP0595636A2 (en) 1994-05-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee